Changes in TemperaturePractice Quiz-3

On a very cold night, Rashid left his soccer ball outside on his balcony. In the morning he noticed that the volume of his soccer ball decreased. Explain the reason behind this.

• The gas pressure decreases as the kinetic energy of the gas particles inside the ball increases.

• The gas pressure decreases as the kinetic energy of the gas particles inside the ball decreases.

• The gas pressure increases as the kinetic energy of the gas particles inside the ball increases.

• The gas pressure increases as the kinetic energy of the gas particles inside the ball decreases.

In an open system,

• Energy and matter cannot move between system and surrounding

• Kinetic energy and thermal energy of the particles decreases

• Energy and matter can move between system and the environment

• Kinetic energy and temperature of the particles decreases.

Observe the image, then indicate the effect of increasing the temperature on the gas inside the flask.

• The kinetic energy of the gas particle increases so the gas pressure increases.

• The space between  the gas particle increases so the gas pressure decreases.

• The thermal energy of the gas particle decreases so the gas pressure increases.

• The motion of the gas particle decreases so the gas pressure increases.

Which statement best describes Charles's Law,

• At constant temperature volume of the gas increases as the temperature increases.

• At constant temperature volume of the gas decreases as the temperature decreases.

• At constant temperature volume of the gas remains constant as the temperature decreases.

• At constant temperature volume of the gas increases as the temperature increases.

On a summer days, the ice cream melts quickly when you are outside. What changes occurs when the ice cream melts from a solid to a liquid state?

• The space between the particles remain the same.

• The space between the particles decreases.

• The thermal energy of the particles decreases.

• The kinetic energy of the particles increases

The gas enclosed in a container exerts a pressure on the inner walls of the container. What is the cause of the gas pressure?

• The gas pressure is due to the force of the collision of gas particles.

• The gas pressure is due to the spaces between the gas particles.

• The gas pressure is due to the size of the gas particles.

• The gas pressure is due to the mass of the gas particles.

During summer electric cables hang loosely since they undergo _________________.

• Thermal contraction.

• Thermal expansion.

• Volume.

• Pressure

What change in the state is shown in the image.

• Boiling

• Freezing

• Melting

• Condensation

Dew forms in the morning on the leaves of the grass when water vapor in the air changes into water droplets. This change is called ____________

• Boiling

• Condensation

• Freezing

• Melting

How could you heat an object?

• Place the object next to another cold object.

• Place the object next to another hot object.

• Decrease the temperature of the object

• Keep the object at constant temperature.